1011212121002 has 16 divisors (see below), whose sum is σ = 1519211505600. Its totient is φ = 504808714080.

The previous prime is 1011212120987. The next prime is 1011212121011. The reversal of 1011212121002 is 2001212121101.

It is a super-2 number, since 2×1011212121002² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4701899 + ... + 4912257.

It is an arithmetic number, because the mean of its divisors is an integer number (94950719100).

Almost surely, 2^{1011212121002} is an apocalyptic number.

1011212121002 is a deficient number, since it is larger than the sum of its proper divisors (507999384598).

1011212121002 is a wasteful number, since it uses less digits than its factorization.

1011212121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214141.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1011212121002 its reverse (2001212121101), we get a palindrome (3012424242103).

Subtracting 1011212121002 from its reverse (2001212121101), we obtain a palindrome (990000000099).

The spelling of 1011212121002 in words is "one trillion, eleven billion, two hundred twelve million, one hundred twenty-one thousand, two".