1211010000102 has 60 divisors (see below), whose sum is σ = 3156589578780. Its totient is φ = 346002854904.

The previous prime is 1211010000043. The next prime is 1211010000127. The reversal of 1211010000102 is 2010000101121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 76271352 + ... + 76287227.

It is an arithmetic number, because the mean of its divisors is an integer number (52609826313).

Almost surely, 2^{1211010000102} is an apocalyptic number.

1211010000102 is an abundant number, since it is smaller than the sum of its proper divisors (1945579578678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211010000102 is a wasteful number, since it uses less digits than its factorization.

1211010000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152558607 (or 152558591 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1211010000102 its reverse (2010000101121), we get a palindrome (3221010101223).

The spelling of 1211010000102 in words is "one trillion, two hundred eleven billion, ten million, one hundred two", and thus it is an aban number.