10221004142 has 4 divisors (see below), whose sum is σ = 15331506216. Its totient is φ = 5110502070.

The previous prime is 10221004139. The next prime is 10221004187. The reversal of 10221004142 is 24140012201.

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

It is a super-3 number, since 3×10221004142³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10221004142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555251034 + ... + 2555251037.

It is an arithmetic number, because the mean of its divisors is an integer number (3832876554).

Almost surely, 2^10221004142 is an apocalyptic number.

10221004142 is a deficient number, since it is larger than the sum of its proper divisors (5110502074).

10221004142 is an equidigital number, since it uses as much as digits as its factorization.

10221004142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110502073.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10221004142 its reverse (24140012201), we get a palindrome (34361016343).

The spelling of 10221004142 in words is "ten billion, two hundred twenty-one million, four thousand, one hundred forty-two".