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BaseRepresentation
bin111010100000110110111…
…000010001011111010101
3112020101221002220220011222
4322200312320101133111
51011340012042013141
612315120533340125
7563336244000263
oct72406670213725
915211832826158
104021010110421
11131033441a597
1254b370197645
13232244840435
14dc891845433
156e8e075314b
hex3a836e117d5

4021010110421 has 16 divisors (see below), whose sum is σ = 4166745513840. Its totient is φ = 3875749785600.

The previous prime is 4021010110331. The next prime is 4021010110457. The reversal of 4021010110421 is 1240110101204.

Adding to 4021010110421 its reverse (1240110101204), we get a palindrome (5261120211625).

It can be written as a sum of positive squares in 8 ways, for example, as 106207551025 + 3914802559396 = 325895^2 + 1978586^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021010110421 - 210 = 4021010109397 is a prime.

It is a super-2 number, since 2×40210101104212 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4021010110421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021010110321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79603445 + ... + 79653941.

It is an arithmetic number, because the mean of its divisors is an integer number (260421594615).

Almost surely, 24021010110421 is an apocalyptic number.

It is an amenable number.

4021010110421 is a deficient number, since it is larger than the sum of its proper divisors (145735403419).

4021010110421 is a wasteful number, since it uses less digits than its factorization.

4021010110421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55144.

The product of its (nonzero) digits is 64, while the sum is 17.

The spelling of 4021010110421 in words is "four trillion, twenty-one billion, ten million, one hundred ten thousand, four hundred twenty-one".