10000021121122 has 4 divisors (see below), whose sum is σ = 15000031681686. Its totient is φ = 5000010560560.

The previous prime is 10000021121099. The next prime is 10000021121149. The reversal of 10000021121122 is 22112112000001.

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

It can be written as a sum of positive squares in only one way, i.e., 9803292502441 + 196728618681 = 3131021^2 + 443541^2 .

It is a super-2 number, since 2×10000021121122² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500005280279 + ... + 2500005280282.

Almost surely, 2^{10000021121122} is an apocalyptic number.

10000021121122 is a deficient number, since it is larger than the sum of its proper divisors (5000010560564).

10000021121122 is an equidigital number, since it uses as much as digits as its factorization.

10000021121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000010560563.

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

Adding to 10000021121122 its reverse (22112112000001), we get a palindrome (32112133121123).

The spelling of 10000021121122 in words is "ten trillion, twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".