1011210121102 has 4 divisors (see below), whose sum is σ = 1516815181656. Its totient is φ = 505605060550.

The previous prime is 1011210121081. The next prime is 1011210121133. The reversal of 1011210121102 is 2011210121101.

It is a happy number.

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

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, 252802530274 + ... + 252802530277.

It is an arithmetic number, because the mean of its divisors is an integer number (379203795414).

Almost surely, 2^{1011210121102} is an apocalyptic number.

1011210121102 is a deficient number, since it is larger than the sum of its proper divisors (505605060554).

1011210121102 is an equidigital number, since it uses as much as digits as its factorization.

1011210121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505605060553.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1011210121102 its reverse (2011210121101), we get a palindrome (3022420242203).

Subtracting 1011210121102 from its reverse (2011210121101), we obtain a palindrome (999999999999).

The spelling of 1011210121102 in words is "one trillion, eleven billion, two hundred ten million, one hundred twenty-one thousand, one hundred two".