201220121100102 has 32 divisors (see below), whose sum is σ = 433399890819840. Its totient is φ = 61913496713760.

The previous prime is 201220121100077. The next prime is 201220121100137. The reversal of 201220121100102 is 201001121022102.

It is a super-2 number, since 2×201220121100102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4639599 + ... + 20590437.

It is an arithmetic number, because the mean of its divisors is an integer number (13543746588120).

Almost surely, 2^{201220121100102} is an apocalyptic number.

201220121100102 is an abundant number, since it is smaller than the sum of its proper divisors (232179769719738).

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

201220121100102 is a wasteful number, since it uses less digits than its factorization.

201220121100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16112588.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201220121100102 its reverse (201001121022102), we get a palindrome (402221242122204).

The spelling of 201220121100102 in words is "two hundred one trillion, two hundred twenty billion, one hundred twenty-one million, one hundred thousand, one hundred two".