2121001021012 has 12 divisors (see below), whose sum is σ = 3730403807200. Its totient is φ = 1055171361816.

The previous prime is 2121001020991. The next prime is 2121001021033. The reversal of 2121001021012 is 2101201001212.

It is an interprime number because it is at equal distance from previous prime (2121001020991) and next prime (2121001021033).

It is a super-2 number, since 2×2121001021012² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121001020983 and 2121001021001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332286278 + ... + 1332287869.

Almost surely, 2^{2121001021012} is an apocalyptic number.

It is an amenable number.

2121001021012 is a deficient number, since it is larger than the sum of its proper divisors (1609402786188).

2121001021012 is a wasteful number, since it uses less digits than its factorization.

2121001021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664574350 (or 2664574348 counting only the distinct ones).

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

Adding to 2121001021012 its reverse (2101201001212), we get a palindrome (4222202022224).

The spelling of 2121001021012 in words is "two trillion, one hundred twenty-one billion, one million, twenty-one thousand, twelve".