1401105502121 has 32 divisors (see below), whose sum is σ = 1670381637120. Its totient is φ = 1162036491264.

The previous prime is 1401105502117. The next prime is 1401105502123. The reversal of 1401105502121 is 1212055011041.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1401105502121 - 2² = 1401105502117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1401105502123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2316476 + ... + 2858018.

It is an arithmetic number, because the mean of its divisors is an integer number (52199426160).

Almost surely, 2^{1401105502121} is an apocalyptic number.

It is an amenable number.

1401105502121 is a deficient number, since it is larger than the sum of its proper divisors (269276134999).

1401105502121 is a wasteful number, since it uses less digits than its factorization.

1401105502121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542105.

The product of its (nonzero) digits is 400, while the sum is 23.

The spelling of 1401105502121 in words is "one trillion, four hundred one billion, one hundred five million, five hundred two thousand, one hundred twenty-one".