1220002101102 has 32 divisors (see below), whose sum is σ = 2446612993440. Its totient is φ = 405566853120.

The previous prime is 1220002101089. The next prime is 1220002101103. The reversal of 1220002101102 is 2011012000221.

It is a super-2 number, since 2×1220002101102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220002101103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5062974 + ... + 5298462.

It is an arithmetic number, because the mean of its divisors is an integer number (76456656045).

Almost surely, 2^{1220002101102} is an apocalyptic number.

1220002101102 is an abundant number, since it is smaller than the sum of its proper divisors (1226610892338).

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

1220002101102 is a wasteful number, since it uses less digits than its factorization.

1220002101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237828.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1220002101102 its reverse (2011012000221), we get a palindrome (3231014101323).

The spelling of 1220002101102 in words is "one trillion, two hundred twenty billion, two million, one hundred one thousand, one hundred two".