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10221010142 = 271921937987
BaseRepresentation
bin10011000010011100…
…00011110011011110
3222101022122010001012
421201032003303132
5131413034311032
64410115415222
7511200103250
oct114116036336
928338563035
1010221010142
114375548222
121b92bb4512
13c6b71c8c5
146cd653cd0
153ec4b76b2
hex261383cde

10221010142 has 16 divisors (see below), whose sum is σ = 17523104640. Its totient is φ = 4380089688.

The previous prime is 10221010141. The next prime is 10221010153. The reversal of 10221010142 is 24101012201.

It is a happy number.

10221010142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×102210101423 (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221010141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250073 + ... + 288059.

It is an arithmetic number, because the mean of its divisors is an integer number (1095194040).

Almost surely, 210221010142 is an apocalyptic number.

10221010142 is a deficient number, since it is larger than the sum of its proper divisors (7302094498).

10221010142 is a wasteful number, since it uses less digits than its factorization.

10221010142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57215.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10221010142 its reverse (24101012201), we get a palindrome (34322022343).

The spelling of 10221010142 in words is "ten billion, two hundred twenty-one million, ten thousand, one hundred forty-two".

Divisors: 1 2 7 14 19219 37987 38438 75974 134533 265909 269066 531818 730072153 1460144306 5110505071 10221010142