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10121022012001 = 85311865207517
BaseRepresentation
bin1001001101000111101111…
…1010111111101001100001
31022211120010102111110020011
42103101323322333221201
52311310323113341001
633305311110444521
72063135234436445
oct223217372775141
938746112443204
1010121022012001
11325233508695a
121175631963741
1358553ccb8c04
1426dc080b2825
1512840e9c6d51
hex9347bebfa61

10121022012001 has 4 divisors (see below), whose sum is σ = 10132887220372. Its totient is φ = 10109156803632.

The previous prime is 10121022011987. The next prime is 10121022012089. The reversal of 10121022012001 is 10021022012101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3022399635025 + 7098622376976 = 1738505^2 + 2664324^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121022012001 - 29 = 10121022011489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121022012091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5932602906 + ... + 5932604611.

It is an arithmetic number, because the mean of its divisors is an integer number (2533221805093).

Almost surely, 210121022012001 is an apocalyptic number.

It is an amenable number.

10121022012001 is a deficient number, since it is larger than the sum of its proper divisors (11865208371).

10121022012001 is an equidigital number, since it uses as much as digits as its factorization.

10121022012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11865208370.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10121022012001 its reverse (10021022012101), we get a palindrome (20142044024102).

The spelling of 10121022012001 in words is "ten trillion, one hundred twenty-one billion, twenty-two million, twelve thousand, one".

Divisors: 1 853 11865207517 10121022012001