1021455105102 has 12 divisors (see below), whose sum is σ = 2213152727760. Its totient is φ = 340485035028.

The previous prime is 1021455105101. The next prime is 1021455105107. The reversal of 1021455105102 is 2015015541201.

It is a happy number.

1021455105102 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 4 + 551 + 0 + 5 + 102 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021455105101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28373752902 + ... + 28373752937.

It is an arithmetic number, because the mean of its divisors is an integer number (184429393980).

Almost surely, 2^{1021455105102} is an apocalyptic number.

1021455105102 is an abundant number, since it is smaller than the sum of its proper divisors (1191697622658).

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

1021455105102 is a wasteful number, since it uses less digits than its factorization.

1021455105102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56747505847 (or 56747505844 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The spelling of 1021455105102 in words is "one trillion, twenty-one billion, four hundred fifty-five million, one hundred five thousand, one hundred two".