1021121222002 has 8 divisors (see below), whose sum is σ = 1750493523456. Its totient is φ = 437623380852.

The previous prime is 1021121221999. The next prime is 1021121222021. The reversal of 1021121222002 is 2002221211201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36468615058 + ... + 36468615085.

It is an arithmetic number, because the mean of its divisors is an integer number (218811690432).

Almost surely, 2^{1021121222002} is an apocalyptic number.

1021121222002 is a deficient number, since it is larger than the sum of its proper divisors (729372301454).

1021121222002 is an equidigital number, since it uses as much as digits as its factorization.

1021121222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72937230152.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021121222002 its reverse (2002221211201), we get a palindrome (3023342433203).

The spelling of 1021121222002 in words is "one trillion, twenty-one billion, one hundred twenty-one million, two hundred twenty-two thousand, two".